Do you need a permit for your Chicago remodel? A plain-English guide
Chicago's Department of Buildings requires permits for most remodeling work. The simple rule: if you are touching structure, electrical, plumbing, HVAC, or the exterior, you need a permit. If you are painting, swapping a vanity, or installing new flooring over existing subfloor, you usually do not.
What requires a permit
- Removing or modifying any wall (even interior partition walls in many buildings)
- New or relocated electrical circuits
- New or relocated plumbing lines
- HVAC installation or modification
- Window or door replacement that changes the opening size
- Roof replacement
- New construction, additions, dormers, decks
What does not require a permit
- Painting and wallpaper
- Flooring replacement over existing subfloor
- Cabinetry replacement if plumbing and electrical stay in place
- Countertop and appliance swaps
- Trim and molding
How long does it take?
Standard residential permits: 4–8 weeks from application to issue. Complex permits (new construction, additions): 8–16 weeks. The exact timeline depends on plan review queue and whether the Zoning Board needs to review.
Self-certification
Chicago offers a Self-Certification program for licensed architects that speeds up the review by handing responsibility to the signing architect. Many of our projects qualify and ship permits in 2–3 weeks.
What happens if you skip the permit?
Three things, in increasing severity:
- Stop-work order if a neighbor or inspector spots unpermitted work in progress
- Fines of $300–$2,500 per violation
- Retroactive permit fees and rework — if an inspector requires you to open up a finished wall to verify code compliance, the retroactive fix can cost 2–3× the original work
Beyond legal risk, unpermitted work shows up in a title search and can derail a future sale. Title insurers sometimes refuse coverage on homes with unpermitted additions.
The short version
If you are considering skipping a permit to save time or money, don't. Our contracts include permits in the fixed price, and we handle the entire application and inspection process. You should never see a clipboard.